libpthread-138.10.4.tar.gz

[apple/libpthread.git] / tests / rwlock-22244050.c

diff --git a/tests/rwlock-22244050.c b/tests/rwlock-22244050.c
new file mode 100644 (file)
index 0000000..a7b86e1
--- /dev/null
+++ b/tests/rwlock-22244050.c
@@ -0,0 +1,51 @@
+#include <pthread.h>
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <libkern/OSAtomic.h>
+
+pthread_t thr;
+pthread_rwlock_t lock;
+OSSpinLock slock = 0;
+int i = 0;
+
+void sighandler(int sig)
+{
+       if (sig == SIGUSR1) {
+               OSSpinLockLock(&slock);
+               OSSpinLockUnlock(&slock);               
+       } else {
+               // ALARM
+               fprintf(stderr, "FAIL (%d)\n", i);
+               exit(1);
+       }
+}
+
+void* thread(void *arg)
+{
+       pthread_rwlock_rdlock(&lock);
+       pthread_rwlock_unlock(&lock);
+       return NULL;
+}
+
+int main(int argc, const char *argv[])
+{
+       pthread_rwlock_init(&lock, NULL);
+       signal(SIGUSR1, sighandler);
+       signal(SIGALRM, sighandler);
+
+       alarm(30);
+
+       while (i++ < 10000) {
+               pthread_rwlock_wrlock(&lock);
+               pthread_create(&thr, NULL, thread, NULL);
+               OSSpinLockLock(&slock);
+               pthread_kill(thr, SIGUSR1);
+               pthread_rwlock_unlock(&lock);
+               OSSpinLockUnlock(&slock);
+       }
+       
+       fprintf(stderr, "PASS\n");
+       return 0;
+}